Answer: I think it's overtraining
Explanation:
biomechanics is one, but Biomechanics is the science of movement of a living body, including how muscles, bones, tendons, and ligaments work together to produce movement. Biomechanics is part of the larger field of kinesiology, specifically focusing on the mechanics of the movement.
But it's not like 'over' biomechanics.
Overtraining is when you train too much and don't stop. For example would be like: He 'over'worked himself. which caused him to fall asleep because he worked way too much.